Camera optical lens comprising six lenses of −+++−+ refractive powers

ABSTRACT

The present disclosure discloses a camera optical lens. The camera optical lens including, in an order from an object side to an image side, a first lens, a second lens having a positive refractive power, a third lens having a positive refractive power, a fourth lens, a fifth lens, and a sixth lens. The camera optical lens further satisfies specific conditions.

FIELD OF THE PRESENT DISCLOSURE

The present disclosure relates to optical lens, in particular to acamera optical lens suitable for handheld devices such as smart phonesand digital cameras and imaging devices.

DESCRIPTION OF RELATED ART

With the emergence of smart phones in recent years, the demand forminiature camera lens is increasing day by day, but the photosensitivedevices of general camera lens are no other than Charge Coupled Device(CCD) or Complementary Metal-Oxide Semiconductor Sensor (CMOS sensor),and as the progress of the semiconductor manufacturing technology makesthe pixel size of the photosensitive devices shrink, coupled with thecurrent development trend of electronic products being that theirfunctions should be better and their shape should be thin and small,miniature camera lens with good imaging quality therefor has become amainstream in the market. In order to obtain better imaging quality, thelens that is traditionally equipped in mobile phone cameras adopts athree-piece or four-piece lens structure. And, with the development oftechnology and the increase of the diverse demands of users, and underthis circumstances that the pixel area of photosensitive devices isshrinking steadily and the requirement of the system for the imagingquality is improving constantly, the five-piece, six-piece andseven-piece lens structure gradually appear in lens design. There is anurgent need for ultra-thin wide-angle camera lenses which have goodoptical characteristics and the chromatic aberration of which is fullycorrected.

BRIEF DESCRIPTION OF THE DRAWINGS

Many aspects of the exemplary embodiments can be better understood withreference to the following drawings. The components in the drawing arenot necessarily drawn to scale, the emphasis instead being placed uponclearly illustrating the principles of the present disclosure.

FIG. 1 is a schematic diagram of a camera optical lens in accordancewith a first embodiment of the present invention;

FIG. 2 shows the longitudinal aberration of the camera optical lensshown in FIG. 1;

FIG. 3 shows the lateral color of the camera optical lens shown in FIG.1;

FIG. 4 presents a schematic diagram of the field curvature anddistortion of the camera optical lens shown in FIG. 1;

FIG. 5 is a schematic diagram of a camera optical lens in accordancewith a second embodiment of the present invention;

FIG. 6 presents the longitudinal aberration of the camera optical lensshown in FIG. 5;

FIG. 7 presents the lateral color of the camera optical lens shown inFIG. 5;

FIG. 8 presents the field curvature and distortion of the camera opticallens shown in FIG. 5;

FIG. 9 is a schematic diagram of a camera optical lens in accordancewith a third embodiment of the present invention;

FIG. 10 presents the longitudinal aberration of the camera optical lensshown in FIG. 9;

FIG. 11 presents the lateral color of the camera optical lens shown inFIG. 9;

FIG. 12 presents the field curvature and distortion of the cameraoptical lens shown in FIG. 9.

DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS

The present disclosure will hereinafter be described in detail withreference to several exemplary embodiments. To make the technicalproblems to be solved, technical solutions and beneficial effects of thepresent disclosure more apparent, the present disclosure is described infurther detail together with the figure and the embodiments. It shouldbe understood the specific embodiments described hereby is only toexplain the disclosure, not intended to limit the disclosure.

Embodiment 1

As referring to FIG. 1, the present invention provides a camera opticallens 10. FIG. 1 shows the camera optical lens 10 of embodiment 1 of thepresent invention, the camera optical lens 10 comprises six lenses.Specifically, from the object side to the image side, the camera opticallens 10 comprises in sequence: an aperture S1, a first lens L1, a secondlens L2, a third lens L3, a fourth lens L4, a fifth lens L5, and a sixthlens L6. Optical element like optical filter GF can be arranged betweenthe sixth lens L6 and the image surface Si.

The first lens L1 is made of plastic material, the second lens L2 ismade of plastic material, the third lens L3 is made of glass material,the fourth lens L4 is made of glass material, the fifth lens L5 is madeof plastic material, the sixth lens L6 is made of plastic material.

The second lens L2 has a positive refractive power and the third lens L3has a positive refractive power.

Here, the focal length of the camera optical lens 10 is defined as f,the focal length of the first lens L1 is defined as f1, the abbe numberof the third lens L3 is defined as v3, the refractive power of thefourth lens L4 is defined as n4, the thickness on-axis of the third lensL3 is defined as d5 and the total optical length of the camera opticallens 10 is defined as TTL. The camera optical lens 10 satisfies thefollowing conditions: −3.0≤f1/f≤−1.5, 60≤v3, 1.7≤n4≤2.2,0.04≤d5/TTL≤0.065.

Condition −3.0≤f1/f≤−1.5 fixes the negative refractive power of thefirst lens L1. If the upper limit of the set value is exceeded, althoughit benefits the ultra-thin development of lenses, the negativerefractive power of the first lens L1 will be too strong, problem likeaberration is difficult to be corrected, and it is also unfavorable forwide-angle development of lens. On the contrary, if the lower limit ofthe set value is exceeded, the negative refractive power of the firstlens becomes too weak, it is then difficult to develop ultra-thinlenses. Preferably, the following condition shall be satisfied,−2.948≤f1/f≤−1.731.

Condition 60≤v3 fixes the abbe number of the third lens L3, andrefractive power within this range benefits the correction of colordifference. Preferably, the following condition shall be satisfied,61.667≤v3.

Condition 1.7≤n4≤2.2 fixes the refractive power of the fourth lens L4,and refractive power within this range benefits the ultra-thindevelopment of lenses, and it also benefits the correction ofaberration. Preferably, the following condition shall be satisfied,1.701≤n4≤2.042.

Condition 0.04≤d5/TTL≤0.065 fixes the ratio between the thicknesson-axis d5 of the third lens L3 and the total optical length TTL of thecamera optical lens 10, and it benefits the ultra-thin development oflenses. Preferably, the following condition shall be satisfied,0.044≤d5/TTL≤0.063.

When the focal length of the camera optical lens 10 of the presentinvention, the focal length of each lens, the refractive power of therelated lens, and the total optical length, the thickness on-axis andthe curvature radius of the camera optical lens satisfy the aboveconditions, the camera optical lens 10 has the advantage of highperformance and satisfies the design requirement of low TTL.

In this embodiment, the object side surface of the first lens L1 is aconvex surface relative to the proximal axis, its image side surface isa concave surface relative to the proximal axis, and it has negativerefractive power; the curvature radius of the object side surface of thefirst lens L1 is defined as R1, the curvature radius of the image sidesurface of the first lens L1 is defined as R2, the thickness on-axis ofthe first lens L1 is defined as d1 and the total optical length of thecamera optical lens is defined as TTL, the condition2.71≤(R1+R2)/(R1−R2)≤11.08 fixes the shape of the first lens L1, so thatthe first lens L1 can effectively correct system spherical aberration;when the condition 0.02≤d1/TTL≤0.07 is met, it is beneficial for therealization of ultra-thin lenses. Preferably, the following conditionsshall be satisfied: 4.34≤(R1+R2)/(R1−R2)≤8.86; 0.04≤d1/TTL≤0.06.

In this embodiment, the object side surface of the second lens L2 is aconvex surface relative to the proximal axis, its image side surface isa concave surface relative to the proximal axis, and it has positiverefractive power; the focal length of the camera optical lens 10 isdefined as f, the focal length of the second lens L2 is defined as f2,the curvature radius of the object side surface of the second lens L2 isdefined as R3, the curvature radius of image side surface of the secondlens L2 is defined as R4, the thickness on-axis of the second lens L2 isdefined as d3 and the total optical length of the camera optical lens isdefined as TTL, they satisfy the following condition: 0.42≤f2/f≤1.36,when the condition is met, the positive refractive power of the secondlens L2 is controlled within reasonable scope, the spherical aberrationcaused by the first lens L1 which has negative refractive power and thefield curvature of the system then can be reasonably and effectivelybalanced; the condition −2.93≤(R3+R4)/(R3−R4)≤−0.94 fixes the shape ofthe second lens L2, when beyond this range, with the development intothe direction of ultra-thin and wide-angle lenses, problem like on-axischromatic aberration is difficult to be corrected; if the condition0.05≤d3/TTL≤0.18 is met, it is beneficial for the realization ofultra-thin lenses. Preferably, the following conditions shall besatisfied: 0.67≤f2/f≤1.09; −1.83≤(R3+R4)/(R3−R4)≤−1.18;0.09≤d3/TTL≤0.14.

In this embodiment, the object side surface of the third lens L3 is aconvex surface relative to the proximal axis, its image side surface isa concave surface relative to the proximal axis, and it has positiverefractive power; the focal length of the camera optical lens 10 isdefined as f, the focal length of the third lens L3 is defined as f3,the curvature radius of the object side surface of the third lens L3 isdefined as R5, the curvature radius of the image side surface of thethird lens L3 is defined as R6, they satisfy the condition:1.75≤f3/f≤6.97, the appropriate distribution of refractive power makesit possible that the system has better imaging quality and lowersensitivity; the condition −16.51≤(R5+R6)/(R5−R6)≤−4.40 fixes the shapeof the third lens L3, when beyond this range, with the development intothe direction of ultra-thin and wide-angle lens, the problem likechromatic aberration is difficult to be corrected. Preferably, thefollowing conditions shall be satisfied: 2.80≤f3/f≤5.58;−10.32≤(R5+R6)/(R5−R6)≤−5.50.

In this embodiment, the object side surface of the fourth lens L4 is aconcave surface relative to the proximal axis, its image side surface isa convex surface relative to the proximal axis, and it has positiverefractive power; the focal length of the camera optical lens 10 isdefined as f, the focal length of the fourth lens L4 is defined as f4,the curvature radius of the object side surface of the fourth lens L4 isdefined as R7, the curvature radius of the image side surface of thefourth lens L4 is defined as R8, the thickness on-axis of the fourthlens L4 is defined as d7 and the total optical length of the cameraoptical lens is defined as TTL, they satisfy the condition:0.98≤f4/f≤3.03, the appropriate distribution of refractive power makesit possible that the system has better imaging quality and lowersensitivity; the condition 1.81≤(R7+R8)/(R7−R8)≤7.43 fixes the shape ofthe fourth lens L4, when beyond this range, with the development intothe direction of ultra-thin and wide-angle lens, the problem likechromatic aberration is difficult to be corrected; when the condition0.04≤d7/TTL≤0.11 is met, it is beneficial for realization of ultra-thinlenses. Preferably, the following conditions shall be satisfied:1.57≤f4/f≤2.43; 2.89≤(R7+R8)/(R7−R8)≤5.94; 0.06≤d7/TTL≤0.09.

In this embodiment, the object side surface of the fifth lens L5 is aconcave surface relative to the proximal axis, its image side surface isa convex surface relative to the proximal axis, and it has negativerefractive power; the focal length of the camera optical lens 10 isdefined as f, the focal length of the fifth lens L5 is defined as f5,the curvature radius of the object side surface of the fifth lens L5 isdefined as R9, the curvature radius of the image side surface of thefifth lens L5 is defined as R10, the thickness on-axis of the fifth lensL5 is defined as d9 and the total optical length of the camera opticallens is defined as TTL, they satisfy the condition: −3.57≤f5/f≤−0.91,the limitation on the fifth lens L5 can effectively make the light angleof the camera lens flat and the tolerance sensitivity reduces; thecondition −13.05≤(R9+R10)/(R9−R10)≤−3.40 fixes the shape of the fifthlens L5, when beyond this range, with the development into the directionof ultra-thin and wide-angle lens, the problem like off-axis chromaticaberration is difficult to be corrected; when the condition0.02≤d9/TTL≤0.08 is met, it is beneficial for the realization ofultra-thin lens. Preferably, the following conditions shall besatisfied: −2.23≤f5/f≤−1.14; −8.16≤(R9+R10)/(R9−R10)≤−4.25;0.04≤d9/TTL≤0.06.

In this embodiment, the object side surface of the sixth lens L6 is aconvex surface relative to the proximal axis, its image side surface isa concave surface relative to the proximal axis, and it has positiverefractive power; the focal length of the camera optical lens 10 isdefined as f, the focal length of the sixth lens L6 is defined as f6,the curvature radius of the object side surface of the sixth lens L6 isdefined as R11, the curvature radius of the image side surface of thesixth lens L6 is defined as R12, the thickness on-axis of the sixth lensL6 is defined as d11 and the total optical length of the camera opticallens is defined as TTL, they satisfy the condition: 1.75≤f6/f≤25.68, theappropriate distribution of refractive power makes it possible that thesystem has better imaging quality and lower sensitivity; the condition5.80≤(R11+R12)/(R11−R12)≤196.26 fixes the shape of the sixth lens L6,when beyond this range, with the development into the direction ofultra-thin and wide-angle lenses, the problem like off-axis chromaticaberration is difficult to be corrected; when the condition0.10≤d11/TTL≤0.32 is met, it is beneficial for the realization ofultra-thin lens. Preferably, the following conditions shall besatisfied: 2.8≤f6/f≤20.54; 9.28≤(R11+R12)/(R11−R12)≤157.01;0.16≤d11/TTL≤0.26.

In this embodiment, the focal length of the camera optical lens 10 isdefined as f and the combined focal length of the first lens and thesecond lens is defined as f12, when the condition 0.71≤f12/f≤2.44 ismet, the aberration and distortion of the camera lens can be eliminated,and the back focus of the camera lens can be suppressed and theminiaturization characteristics can be maintained. Preferably, thefollowing conditions shall be satisfied: 1.14≤f12/f≤1.95.

In this embodiment, the total optical length TTL of the camera opticallens 10 is less than or equal to 5.17 mm, it is beneficial for therealization of ultra-thin lenses. Preferably, the total optical lengthTTL of the camera optical lens 10 is less than or equal to 4.94 mm.

In this embodiment, the aperture F number of the camera optical lens 10is less than or equal to 2.27. A large aperture has better imagingperformance. Preferably, the aperture F number of the camera opticallens 10 is less than or equal to 2.22.

With such design, the total optical length TTL of the camera opticallens 10 can be made as short as possible, thus the miniaturizationcharacteristics can be maintained.

In the following, an example will be used to describe the camera opticallens 10 of the present invention. The symbols recorded in each exampleare as follows. The unit of focal length, distance on-axis, curvatureradius, thickness on-axis, inflexion point position and arrest pointposition is mm.

TTL: Optical length (the distance on-axis from the object side surfaceto the image surface of the first lens L1).

Preferably, inflexion points and/or arrest points can also be arrangedon the object side surface and/or image side surface of the lens, sothat the demand for high quality imaging can be satisfied, thedescription below can be referred for specific implementable scheme.

The design information of the camera optical lens 10 in the firstembodiment of the present invention is shown in the tables 1 and 2.

TABLE 1 R d nd νd S1 ∞ d0= −0.120 R1 1.837 d1= 0.215 nd1 1.6713 ν1 19.24R2 1.266 d2= 0.039 R3 1.391 d3= 0.558 nd2 1.5445 ν2 55.99 R4 7.400 d4=0.134 R5 1.966 d5= 0.230 nd3 1.6180 ν3 63.33 R6 2.509 d6= 0.399 R7−4.131 d7= 0.340 nd4 1.7020 ν4 40.10 R8 −2.340 d8= 0.443 R9 −0.773 d9=0.230 nd5 1.6713 ν5 19.24 R10 −1.053 d10= 0.035 R11 1.673 d11= 0.963 nd61.5352 ν6 56.09 R12 1.407 d12= 0.803 R13 ∞ d13= 0.210 ndg 1.5168 νg64.17 R14 ∞ d14= 0.100

In which, the meaning of the various symbols is as follows.

-   -   S1: Aperture;    -   R: The curvature radius of the optical surface, the central        curvature radius in case of lens;    -   R1: The curvature radius of the object side surface of the first        lens L1;    -   R2: The curvature radius of the image side surface of the first        lens L1;    -   R3: The curvature radius of the object side surface of the        second lens L2;    -   R4: The curvature radius of the image side surface of the second        lens L2;    -   R5: The curvature radius of the object side surface of the third        lens L3;    -   R6: The curvature radius of the image side surface of the third        lens L3;    -   R7: The curvature radius of the object side surface of the        fourth lens L4;    -   R8: The curvature radius of the image side surface of the fourth        lens L4;    -   R9: The curvature radius of the object side surface of the fifth        lens L5;    -   R10: The curvature radius of the image side surface of the fifth        lens L5;    -   R11: The curvature radius of the object side surface of the        sixth lens L6;    -   R12: The curvature radius of the image side surface of the sixth        lens L6;    -   R13: The curvature radius of the object side surface of the        optical filter GF;    -   R14: The curvature radius of the image side surface of the        optical filter GF;    -   d: The thickness on-axis of the lens and the distance on-axis        between the lens;    -   d0: The distance on-axis from aperture S1 to the object side        surface of the first lens L1;    -   d1: The thickness on-axis of the first lens L1;    -   d2: The distance on-axis from the image side surface of the        first lens L1 to the object side surface of the second lens L2;    -   d3: The thickness on-axis of the second lens L2;    -   d4: The distance on-axis from the image side surface of the        second lens L2 to the object side surface of the third lens L3;    -   d5: The thickness on-axis of the third lens L3;    -   d6: The distance on-axis from the image side surface of the        third lens L3 to the object side surface of the fourth lens L4;    -   d7: The thickness on-axis of the fourth lens L4;    -   d8: The distance on-axis from the image side surface of the        fourth lens L4 to the object side surface of the fifth lens L5;    -   d9: The thickness on-axis of the fifth lens L5;    -   d10: The distance on-axis from the image side surface of the        fifth lens L5 to the object side surface of the sixth lens L6;    -   d11: The thickness on-axis of the sixth lens L6;    -   d12: The distance on-axis from the image side surface of the        sixth lens L6 to the object side surface of the optical filter        GF;    -   d13: The thickness on-axis of the optical filter GF;    -   d14: The distance on-axis from the image side surface to the        image surface of the optical filter GF;    -   nd: The refractive power of the d line;    -   nd1: The refractive power of the d line of the first lens L1;    -   nd2: The refractive power of the d line of the second lens L2;    -   nd3: The refractive power of the d line of the third lens L3;    -   nd4: The refractive power of the d line of the fourth lens L4;    -   nd5: The refractive power of the d line of the fifth lens L5;    -   nd6: The refractive power of the d line of the sixth lens L6;    -   ndg: The refractive power of the d line of the optical filter        GF;    -   vd: The abbe number;    -   v1: The abbe number of the first lens L1;    -   v2: The abbe number of the second lens L2;    -   v3: The abbe number of the third lens L3;    -   v4: The abbe number of the fourth lens L4;    -   v5: The abbe number of the fifth lens L5;    -   v6: The abbe number of the sixth lens L6;    -   vg: The abbe number of the optical filter GF;

Table 2 shows the aspherical surface data of the camera optical lens 10in the embodiment 1 of the present invention.

TABLE 2 Conic Index Aspherical Surface Index k A4 A6 A8 A10 A12 A14 A16R1 −1.0172E−00 −1.1610E−01 6.1953E−02 −5.9419E−02 −1.0451E−02 1.1228E−02  7.6916E−02 −6.1399E−02  R2 −2.9793E−00 −1.3770E−012.0627E−01 −1.1117E−01 −3.4104E−01  2.2231E−01  6.4937E−01 −5.7370E−01 R3  3.8781E−01 −2.4183E−01 2.1099E−01 −2.4394E−01 −1.3966E−01 1.5473E−01  1.8010E−01 −2.0454E−01  R4 −3.5000E−02 −1.2486E−011.8057E−03  3.6603E−02 4.7431E−03 −8.3026E−02  −8.1279E−02 1.5730E−01 R5−3.7654E−00 −1.8772E−01 2.0436E−02 −5.2064E−02 6.3074E−02 4.1150E−02−1.0773E−01 9.9649E−02 R6 −1.7793E−01 −3.9430E−02 −1.0635E−01  3.6830E−02 1.0002E−01 −4.7337E−02  −1.2302E−01 1.0129E−01 R7 0.0000E−00 −1.4283E−01 2.2720E−02 −2.7759E−02 −1.2495E−02  4.4146E−02 5.5227E−02 −6.9140E−02  R8  2.3969E−00 −1.0410E−01 3.4238E−02 2.2670E−02 7.9013E−03 1.6614E−02  8.3736E−03 5.6824E−04 R9 −4.2242E−00−6.4302E−02 −1.1553E−02  −1.2181E−02 7.6438E−03 1.9104E−03 −3.1099E−03−8.8985E−04  R10 −4.3095E−00  6.2402E−03 −2.5700E−02   1.3060E−032.0496E−03  7.2333E−04  3.9067E−04 −2.1430E−04  R11 −1.3702E−01−1.0639E−01 1.7746E−02  3.6117E−04 −5.5240E−05  −7.4549E−06  −9.8526E−061.2944E−06 R12 −6.2383E−00 −4.50763−02 9.1297E−03 −1.4997E−03 9.1627E−05−7.3201E−07  −1.5255E−07 −7.1336E−09 

Among them, K is a conic index, A4, A6, A8, A10, A12, A14, A16 areaspheric surface indexes.

IH: Image heighty=(x ² /R)/[1+{1−(k+1)(x ² /R ²)}^(1/2)]+A4x ⁴ +A6x ⁶ +A8x ⁸ +A10x ¹⁰+A12x ¹² +A14x ¹⁴ +A16x ¹⁶  (1)

For convenience, the aspheric surface of each lens surface uses theaspheric surfaces shown in the above condition (1). However, the presentinvention is not limited to the aspherical polynomials form shown in thecondition (1).

Table 3 and table 4 show the inflexion points and the arrest pointdesign data of the camera optical lens 10 lens in embodiment 1 of thepresent invention. In which, P1R1 and P1R2 represent respectively theobject side surface and image side surface of the first lens L1, P2R1and P2R2 represent respectively the object side surface and image sidesurface of the second lens L2, P3R1 and P3R2 represent respectively theobject side surface and image side surface of the third lens L3, P4R1and P4R2 represent respectively the object side surface and image sidesurface of the fourth lens L4, P5R1 and P5R2 represent respectively theobject side surface and image side surface of the fifth lens L5, P6R1and P6R2 represent respectively the object side surface and image sidesurface of the sixth lens L6. The data in the column named “inflexionpoint position” are the vertical distances from the inflexion pointsarranged on each lens surface to the optic axis of the camera opticallens 10. The data in the column named “arrest point position” are thevertical distances from the arrest points arranged on each lens surfaceto the optic axis of the camera optical lens 10.

TABLE 3 inflexion point inflexion point inflexion point number position1 position 2 P1R1 1 0.705 P1R2 0 P2R1 0 P2R2 2 0.245 0.885 P3R1 2 0.4450.845 P3R2 1 0.505 P4R1 0 P4R2 1 0.935 P5R1 0 P5R2 1 1.185 P6R1 2 0.4451.615 P6R2 1 0.705

TABLE 4 arrest point arrest point arrest point number position 1position 2 P1R1 0 P1R2 0 P2R1 0 P2R2 1 0.435 P3R1 2 0.815 0.865 P3R2 10.875 P4R1 0 P4R2 0 P5R1 0 P5R2 0 P6R1 1 0.905 P6R2 1 1.575

FIG. 2 and FIG. 3 show the longitudinal aberration and lateral colorschematic diagrams after light with a wavelength of 470 nm, 555 nm and650 nm passes the camera optical lens 10 in the first embodiment. FIG. 4shows the field curvature and distortion schematic diagrams after lightwith a wavelength of 555 nm passes the camera optical lens 10 in thefirst embodiment, the field curvature S in FIG. 4 is a field curvaturein the sagittal direction, T is a field curvature in the meridiandirection.

Table 13 shows the various values of the examples 1, 2, 3 and the valuescorresponding with the parameters which are already specified in theconditions.

As shown in Table 13, the first embodiment satisfies the variousconditions.

In this embodiment, the pupil entering diameter of the camera opticallens is 1.64 mm, the full vision field image height is 2.933 mm, thevision field angle in the diagonal direction is 78.92°, it haswide-angle and is ultra-thin, its on-axis and off-axis chromaticaberrations are fully corrected, and it has excellent opticalcharacteristics.

Embodiment 2

Embodiment 2 is basically the same as embodiment 1, the meaning of itssymbols is the same as that of embodiment 1, in the following, only thedifferences are described.

Table 5 and table 6 show the design data of the camera optical lens 20in embodiment 2 of the present invention.

TABLE 5 R d nd νd S1 ∞ d0= −0.120 R1 1.769 d1= 0.215 nd1 1.6713 ν1 19.24R2 1.280 d2= 0.042 R3 1.435 d3= 0.561 nd2 1.5445 ν2 55.99 R4 7.901 d4=0.155 R5 2.049 d5= 0.251 nd3 1.4875 ν3 70.24 R6 2.732 d6= 0.372 R7−3.859 d7= 0.352 nd4 1.7972 ν4 41.14 R8 −2.390 d8= 0.395 R9 −0.743 d9=0.222 nd5 1.6613 ν5 20.37 R10 −1.051 d10= 0.035 R11 1.487 d11= 0.981 nd61.5352 ν6 56.09 R12 1.391 d12= 0.810 R13 ∞ d13= 0.210 ndg 1.5168 νg64.17 R14 ∞ d14= 0.100

Table 6 shows the aspherical surface data of each lens of the cameraoptical lens 20 in embodiment 2 of the present invention.

TABLE 6 Conic Index Aspherical Surface Index k A4 A6 A8 A10 A12 A14 A16R1 −6.3445E−01 −1.0907E−01 6.0514E−02 −7.8145E−02 −6.3322E−03 1.6538E−023.6445E−02 −7.0730E−02  R2 −2.6483E−00 −1.2656E−01 2.0772E−01−1.2512E−01 −3.4043E−01 2.1742E−01 6.0626E−01 −4.9017E−01  R3 7.5960E−01 −2.1744E−01 2.2067E−01 −2.3524E−01 −1.5391E−01 1.6140E−012.4376E−01 −2.0536E−01  R4 −3.5000E−02 −1.2475E−01 6.4846E−03−1.6541E−03  4.9310E−03 −4.5163E−02  −4.0953E−02  9.9215E−02 R5−4.9412E−00 −1.9976E−01 −6.4359E−03  −1.0233E−01  1.0649E−01 7.1316E−02−1.0957E−01  7.2995E−02 R6 −7.9502E−01 −9.1320E−02 −1.2363E−01  1.2932E−02  9.3372E−02 −2.0412E−02  −9.7123E−02  8.5603E−02 R7 0.0000E−00 −1.4344E−01 1.3053E−02 −4.6723E−02 −1.6357E−02 4.4476E−026.3541E−02 −3.4556E−02  R8  2.9082E−00 −1.0289E−01 2.5967E−02 1.1570E−02 −1.2355E−02 1.6103E−02 1.2160E−02 1.2334E−03 R9 −4.6749E−00−4.5931E−02 −1.6602E−02  −1.3170E−02  1.1133E−02 1.3863E−03 −4.6093E−03 −6.1756E−04  R10 −4.9252E−00  1.3690E−02 −2.3572E−02   1.5267E−03 1.2735E−03 6.4094E−04 2.9433E−04 −2.0919E−04  R11 −1.3218E−01 −1.0337E−01 1.6917E−02  3.0557E−04 −6.2742E−05 −1.2232E−05  −1.0727E−05 1.5639E−08 R12 −6.1717E−00 −4.4171E−02 9.2034E−03 −1.6257E−03 1.2235E−04 −2.1053E−05  −6.3081E−07  5.0901E−05

Table 7 and table 8 show the inflexion points and the arrest pointdesign data of the camera optical lens 20 lens in the second embodimentof the present invention.

TABLE 7 inflexion point inflexion point inflexion point number position1 position 2 P1R1 1 0.725 P1R2 0 P2R1 0 P2R2 2 0.245 0.895 P3R1 2 0.4050.875 P3R2 1 0.465 P4R1 1 0.905 P4R2 1 0.945 P5R1 0 P5R2 2 1.315 1.355P6R1 1 0.445 P6R2 1 0.705

TABLE 8 arrest point arrest point number position 1 P1R1 0 P1R2 0 P2R1 0P2R2 1 0.425 P3R1 1 0.685 P3R2 1 0.765 P4R1 0 P4R2 0 P5R1 0 P5R2 0 P6R11 0.925 P6R2 1 1.595

FIG. 6 and FIG. 7 show the longitudinal aberration and lateral colorschematic diagrams after light with a wavelength of 470 nm, 555 nm and650 nm passes the camera optical lens 20 in the second embodiment. FIG.8 shows the field curvature and distortion schematic diagrams afterlight with a wavelength of 555 nm passes the camera optical lens 20 inthe second embodiment.

As shown in Table 13, the second embodiment satisfies the variousconditions.

In this embodiment, the pupil entering diameter of the camera opticallens is 1.775 mm, the full vision field image height is 2.933 mm, thevision field angle in the diagonal direction is 79.37°, it haswide-angle and is ultra-thin, its on-axis and off-axis chromaticaberrations are fully corrected, and it has excellent opticalcharacteristics.

Embodiment 3

Embodiment 3 is basically the same as embodiment 1, the meaning of itssymbols is the same as that of embodiment 1, in the following, only thedifferences are described.

The design information of the camera optical lens 30 in the thirdembodiment of the present invention is shown in the tables 9 and 10.

TABLE 9 R d nd νd S1 ∞ d0= −0.120 R1 1.682 d1= 0.215 nd1 1.6713 ν1 19.24R2 1.280 d2= 0.051 R3 1.467 d3= 0.501 nd2 1.5445 ν2 55.99 R4 8.605 d4=0.149 R5 2.358 d5= 0.277 nd3 1.4970 ν3 81.55 R6 3.201 d6= 0.338 R7−3.593 d7= 0.345 nd4 1.8830 ν4 40.77 R8 −2.385 d8= 0.378 R9 −0.761 d9=0.250 nd5 1.6613 ν5 20.37 R10 −1.133 d10= 0.035 R11 1.472 d11= 0.997 nd61.5352 ν6 56.09 R12 1.450 d12= 0.793 R13 ∞ d13= 0.210 ndg 1.5168 νg64.17 R14 ∞ d14= 0.100

Table 10 shows the aspherical surface data of each lens of the cameraoptical lens 30 in embodiment 3 of the present invention.

TABLE 10 Conic Index Aspherical Surface Index k A4 A6 A8 A10 A12 A14 A16R1 −6.3023E−01 −1.0796E−01 5.0079E−02 −8.3537E−02 −1.3649E−02 2.9669E−02 9.2694E−02 −9.5370E−02  R2 −2.5307E−00 −1.1565E−01 2.0439E−01−1.6266E−01 −3.4269E−01 2.6549E−01  6.3112E−01 −5.9363E−01   R3 9.3814E−01 −2.0067E−01 2.0036E−01 −2.3206E−01 −1.4117E−01 1.3599E−01 1.9170E−01 −1.6167E−01  R4 −3.5000E−02 −1.4297E−01 1.2235E−02 7.9564E−03  2.1205E−02 −6.3443E−02  −6.8251E−02 1.5399E−01 R5−4.8663E−00 −2.0065E−01  4.243E−03 −8.1157E−02  1.2032E−01 3.1605E−02−1.3603E−01 8.9430E−02 R6  2.4358E−01 −8.4122E−02 −1.0231E−01  4.4017E−03  7.2199E−02 −1.6464E−02  −6.0169E−02 5.0925E−02 R7 0.0000E−00 −1.4701E−01 1.6323E−02 −4.3327E−02 −1.7764E−02 5.0235E−02 7.1336E−02 −5.1226E−02  R8  2.9567E−00 −9.6393E−02 2.5934E−02 1.2612E−02 −1.1264E−02 1.8071E−02  1.0563E−02 2.3332E−03 R9 −4.6660E−00−5.3315E−02 −1.7623E−02  −1.5046E−02  1.1314E−02 −3.3457E−04  −4.7026E−03 −9.4773E−04   R10 −4.9069E−00  1.2261E−02 −1.4954E−02  1.6874E−03  1.5334E−03 4.2435E−04  4.1623E−04 −1.4636E−04  R11−1.2791E−01 −1.0593E−01 1.7405E−02  1.6657E−04 −3.0420E−03 −3.8464E−06 −1.0149E−05 1.4935E−06 R12 −6.1942E−00 −4.6430E−02 9.5723E−03−1.6790E−03  1.2365E−04 −2.0057E−06  −4.7513E−07 2.1765E−03

Table 11 and table 12 show the inflexion points and the arrest pointdesign data of the camera optical lens 30 lens in embodiment 3 of thepresent invention.

TABLE 11 inflexion point inflexion point inflexion point number position1 position 2 P1R1 1 0.685 P1R2 1 0.705 P2R1 0 P2R2 2 0.225 0.855 P3R1 20.395 0.825 P3R2 1 0.455 P4R1 0 P4R2 1 0.935 P5R1 0 P5R2 1 1.195 P6R1 20.445 1.645 P6R2 1 0.695

TABLE 12 arrest point arrest point number position 1 P1R1 0 P1R2 0 P2R10 P2R2 1 0.395 P3R1 1 0.685 P3R2 1 0.745 P4R1 0 P4R2 0 P5R1 0 P5R2 0P6R1 1 0.925 P6R2 1 1.545

FIG. 10 and FIG. 11 show the longitudinal aberration and lateral colorschematic diagrams after light with a wavelength of 470 nm, 555 nm and650 nm passes the camera optical lens 30 in the third embodiment. FIG.12 shows the field curvature and distortion schematic diagrams afterlight with a wavelength of 555 nm passes the camera optical lens 30 inthe third embodiment.

The following table 13, in accordance with the above conditions, liststhe values in this embodiment corresponding with each conditionexpression. Apparently, the camera optical system of this embodimentsatisfies the above conditions.

In this embodiment, the pupil entering diameter of the camera opticallens is 1.586 mm, the full vision field image height is 2.933 mm, thevision field angle in the diagonal direction is 80.37°, it haswide-angle and is ultra-thin, its on-axis and off-axis chromaticaberrations are fully corrected, and it has excellent opticalcharacteristics.

TABLE 13 Embodiment 1 Embodiment 2 Embodiment 3 f 3.607 3.549 3.489 f1−7.077 −8.313 −10.109 f2 3.036 3.114 3.160 f3 1.263E+01 1.497E+011.621E+01 f4 7.098 7.085 7.054 f5 −6.435 −5.328 −4.755 f6 61.760 15.59012.192 f12 5.862 5.444 4.980 (R1 + R2)/(R1 − R2) 5.427 6.237 7.383 (R3 +R4)/(R3 − R4) −1.463 −1.444 −1.411 (R5 + R6)/(R5 − R6) −8.253 −7.002−6.598 (R7 + R8)/(R7 − R8) 3.614 4.253 4.950 (R9 + R10)/ −6.527 −5.812−5.095 (R9 − R10) (R11 + R12)/ 11.605 29.997 130.842 (R11 − R12) f1/f−1.962 −2.342 −2.897 f2/f 0.841 0.877 0.906 f3/f 3.501 4.216 4.647 f4/f1.968 1.996 2.022 f5/f −1.784 −1.501 −1.363 f6/f 17.120 4.392 3.494f12/f 1.625 1.534 1.427 d1 0.215 0.215 0.215 d3 0.558 0.561 0.501 d50.230 0.251 0.277 d7 0.340 0.352 0.345 d9 0.230 0.222 0.250 d11 0.9630.981 0.997 Fno 2.200 2.000 2.200 TTL 4.700 4.700 4.639 d1/TTL 0.0460.046 0.046 d3/TTL 0.119 0.119 0.108 d5/TTL 0.049 0.053 0.060 d7/TTL0.072 0.075 0.074 d9/TTL 0.049 0.047 0.054 d11/TTL 0.205 0.209 0.215 n11.6713 1.6713 1.6713 n2 1.5445 1.5445 1.5445 n3 1.6180 1.4875 1.4970 n41.7020 1.7972 1.8830 n5 1.6713 1.6613 1.6613 n6 1.5352 1.5352 1.5352 v119.2429 19.2429 19.2429 v2 55.9870 55.9870 55.9870 v3 63.3335 70.236381.5459 v4 40.0972 41.1438 40.7651 v5 19.2429 20.3729 20.3729 v6 56.093456.0934 56.0934

It is to be understood, however, that even though numerouscharacteristics and advantages of the present exemplary embodiments havebeen set forth in the foregoing description, together with details ofthe structures and functions of the embodiments, the disclosure isillustrative only, and changes may be made in detail, especially inmatters of shape, size, and arrangement of parts within the principlesof the invention to the full extent indicated by the broad generalmeaning of the terms where the appended claims are expressed.

What is claimed is:
 1. A camera optical lens comprising, from an objectside to an image side in sequence: a first lens, a second lens, a thirdlens, a fourth lens, a fifth lens and a sixth lens; wherein the secondlens has a positive refractive power, the third lens has a positiverefractive power; the third lens has a convex object side surface and aconcave image side surface; the camera optical lens further satisfiesthe following conditions:−3.0≤f1/f≤−1.5;60≤v3;1.7≤n4≤2.2;0.04≤d5/TTL≤−0.065;1.75≤f3/f≤6.97;−16.51≤(R5+R6)/(R5−R6)≤−4.40; where f: the focal length of the cameraoptical lens; f1: the focal length of the first lens; v3: the abbenumber of the third lens; n4: the refractive power of the fourth lens;d5: the thickness on-axis of the third lens; TTL: the total opticallength of the camera optical lens; f3: the focal length of the thirdlens; R5: the curvature radius of the object side surface of the thirdlens; R6: the curvature radius of the image side surface of the thirdlens.
 2. The camera optical lens as described in claim 1, wherein thefirst lens is made of plastic material, the second lens is made ofplastic material, the third lens is made of glass material, the fourthlens is made of glass material, the fifth lens is made of plasticmaterial, the sixth lens is made of plastic material.
 3. The cameraoptical lens as described in claim 1, wherein the camera optical lensfurther satisfies the following conditions:−2.948≤f1/f≤−1.731;61.667≤v3;1.701≤n4≤2.042;0.044≤d5/TTL≤0.063.
 4. The camera optical lens as described in claim 1,wherein the first lens has a negative refractive power with a convexobject side surface and a concave image side surface; the camera opticallens further satisfies the following conditions:2.71≤(R1+R2)/(R1−R2)≤11.08;0.02≤d1/TTL≤0.07; where R1: the curvature radius of object side surfaceof the first lens; R2: the curvature radius of image side surface of thefirst lens; d1: the thickness on-axis of the first lens; TTL: the totaloptical length of the camera optical lens.
 5. The camera optical lens asdescribed in claim 4, wherein the camera optical lens further satisfiesthe following conditions:4.34≤(R1+R2)/(R1−R2)≤8.86;0.04≤d1/TTL≤0.06.
 6. The camera optical lens as described in claim 1,wherein the second lens has a convex object side surface and a concaveimage side surface; the camera optical lens further satisfies thefollowing conditions:0.42≤f2/f≤1.36;−2.93≤(R3+R4)/(R3−R4)≤−0.94;0.056≤d3/TTL≤0.18; where f: the focal length of the camera optical lens;f2: the focal length of the second lens; R3: the curvature radius of theobject side surface of the second lens; R4: the curvature radius of theimage side surface of the second lens; d3: the thickness on-axis of thesecond lens; TTL: the total optical length of the camera optical lens.7. The camera optical lens as described in claim 6, wherein the cameraoptical lens further satisfies the following conditions:0.67≤f2/f≤1.09;−1.83≤(R3+R4)/(R3−R4)≤−1.18;0.09≤d3/TTL≤0.14.
 8. The camera optical lens as described in claim 1,wherein the camera optical lens further satisfies the followingconditions:2.80≤f3/f≤5.58;−10.32≤(R5+R6)/(R5−R6)≤−5.50.
 9. The camera optical lens as described inclaim 1, wherein the fourth lens has a positive refractive power with aconcave object side surface and a convex image side surface; the cameraoptical lens further satisfies the following conditions:0.98≤f4/f≤3.03;1.81≤(R7+R8)/(R7−R8)≤7.43;0.04≤d7/TTL≤0.11; where f: the focal length of the camera optical lens;f4: the focal length of the fourth lens; R7: the curvature radius of theobject side surface of the fourth lens; R8: the curvature radius of theimage side surface of the fourth lens; d7: the thickness on-axis of thefourth lens; TTL: the total optical length of the camera optical lens.10. The camera optical lens as described in claim 9, wherein the cameraoptical lens further satisfies the following conditions:1.57≤f4/f≤2.43;2.89≤(R7+R8)/(R7−R8)≤5.94;0.06≤d7/TTL≤0.09.
 11. The camera optical lens as described in claim 1,wherein the fifth lens has a negative refractive power with a concaveobject side surface and a convex image side surface; the camera opticallens further satisfies the following conditions:−3.57≤f5/f≤−0.91;−13.05≤(R9+R10)/(R9−R10)≤−3.40;0.02≤d9/TTL≤0.08; where f: the focal length of the camera optical lens;f5: the focal length of the fifth lens; R9: the curvature radius of theobject side surface of the fifth lens; R10: the curvature radius of theimage side surface of the fifth lens; d9: the thickness on-axis of thefifth lens; TTL: the total optical length of the camera optical lens.12. The camera optical lens as described in claim 11, wherein the cameraoptical lens further satisfies the following conditions:−2.23≤f5/f≤−1.14;−8.16≤(R9+R10)/(R9−R10)≤−4.25;0.04≤d9/TTL≤0.06.
 13. The camera optical lens as described in claim 1,wherein the sixth lens has a positive refractive power with a convexobject side surface and a concave image side surface; the camera opticallens further satisfies the following conditions:1.75≤f6/f≤25.68;5.80≤(R11+R12)/(R11−R12)≤196.26;0.10≤d11/TTL≤0.32; where f: the focal length of the camera optical lens;f6: the focal length of the sixth lens; R11: the curvature radius of theobject side surface of the sixth lens; R12: the curvature radius of theimage side surface of the sixth lens; d11: the thickness on-axis of thesixth lens; TTL: the total optical length of the camera optical lens.14. The camera optical lens as described in claim 13, wherein the cameraoptical lens further satisfies the following conditions:2.8≤f6/f≤20.54;9.28≤(R11+R12)/(R11−R12)≤−157.01;0.16≤d11/TTL≤0.26.
 15. The camera optical lens as described in claim 1,wherein the camera optical lens further satisfies the followingconditions:0.71≤f12/f≤2.44; where f: the focal length of the camera optical lens;f12: the combined focal length of the first lens and the second lens.16. The camera optical lens as described in claim 15, wherein the cameraoptical lens further satisfies the following conditions:1.14≤f12/f≤1.95.
 17. The camera optical lens as described in claim 1,wherein the total optical length TTL of the camera optical lens is lessthan or equal to 5.17 mm.
 18. The camera optical lens as described inclaim 1, wherein the aperture F number of the camera optical lens isless than or equal to 2.27.
 19. The camera optical lens as described inclaim 18, wherein the aperture F number of the camera optical lens isless than or equal to 2.22.